We're all fucked in the head in some way, we all say we're alright when we're not. We all do things that we regret. We all make mistakes, but that doesn't mean we're all good people, there are bad people. And I'm sorry to break it to you but it's true
Avery splits her finger open with a knife ad offers it to Deryk, when he's been refusing to drink from her in fear of the bruises that won't heal. Tempted, he's unable to help himself and leaves more bruises on her again.